The Planck era refers to the time period
A)before the Big Bang.
B)before the Planck time.
C)after the Planck time.
D)after inflation.
E)after the GUT era.

Question

Quizplus · Accepted Answer

The Planck era refers to the period of time before the Planck time, which is the earliest time period that can be mathematically modeled using our current understanding of physics. The Planck era is a time of extremely high energy and temperature, and is thought to have ended after the universe went through a period of exponential expansion known as inflation.

The Planck Era Refers to the Time Period